Sample transmission light curve fitting of the HST/STIS observations of HD 189733 b (fourth echelle order, ). The top row shows the raw light curves (one column for each of the three visits). The symbols with error bars denote the fluxes and their uncertainties integrated over the echelle order for each frame. The symbols are color-coded according to the HST orbit, where gray denotes the frames discarded from the light curve fitting. The bottom rows show the systematics-corrected light curves corresponding to the best BIC (colored circles) and best AICc statistics (empty black diamonds), including the jitter decorrelation. The solid lines denote the astrophysical model of the best BIC (colored lines) and best AICc models (black lines).